Head gasket trouble and more

[notagp_afj55]

So i get the headgasket all changed and everything buttoned up. I fill the crankcase
with oil, get the first gallon of antifreeze in and start on the next gallon of water
when i only get 1/4 of it in and i hear water running out somewhere under the
truck. I crawl under and see water coming out between the block and tranny
above the rear seal and it is real clear. My question is could the truck have got hot
enough to pop a freeze plug provided there is one back there, which i think there
is or did the block crack back there somewhere? I pulled the dip stick and the
oil is still nice and clear amber color. I dont know what else it could be.
Does anyone have any insite as to what might be the prob? If it is the freeze
plug then i assume the tranny has to come out correct? any help would be
greatly appreciated.

thx

-Jimk

 

[LoneRanger]

So i get the headgasket all changed and everything buttoned up. I fill the crankcase
with oil, get the first gallon of antifreeze in and start on the next gallon of water
when i only get 1/4 of it in and i hear water running out somewhere under the
truck. I crawl under and see water coming out between the block and tranny
above the rear seal and it is real clear. My question is could the truck have got hot
enough to pop a freeze plug provided there is one back there, which i think there
is or did the block crack back there somewhere? I pulled the dip stick and the
oil is still nice and clear amber color. I dont know what else it could be.
Does anyone have any insite as to what might be the prob? If it is the freeze
plug then i assume the tranny has to come out correct? any help would be
greatly appreciated.

thx

-Jimk

Check the heater hose to the right of the airfilter housing. It leads through the firewall to the rear heater core. I had it go once and all the coolant was pouring out from between the block and transm, even though I couldn't see the leak. Just a thought.

 

[Dynosoar]

There is a freeze plug hidden in there. Usually it will corrode (rust) out before it will blow out due to heat. Chances are you have a rusty plug back there. its kind of a bitch getting to it. It has been a while since I had to do one but I am pretty sure you gotta pull the flywheel to get to it.
first check the hoses to eliminate the easy fix then if it's still leaking you goyya pull the trans/transfer, clutch / flywheel and bell housing. like I said it's a bitch.

Dynosoar

 

[notagp_afj55]

Ok will check the heater hoses never gave that any thought to be honest, but if that
fixes then i am in like flynn. Otherwise if it is a freeze plug then i need to change
the rear seal anyway as it is leaking bad and i can kill two birds at the same time.

I guess things arent always as bad as they seem. thanks for the help. If anyone
has any more suggestions please post up i would really appreciate it..

-Jim

 

[Kief]

You can replace that hose over the top for a quick fix, if I remember right there are some hard lines behing the block. I have drilled a hole in the firewall on a 40 series before to replace the freeze plug on the block, don't know if it will work on the head/ 60's.
TIP: Always fill with water and drain it out after it passes inspection/ a week of driving.. at least in summer temps. When you drain it you might find some junk that would have other wise been left in the system, especially with a head gasket change and it saves wasting high dollar anti-freeze. Those inline hose flush kit/ garden hose adapters after the oil cooler ( I think) make draining the system a little easier.

 

[Kief]

Oh, might want to do a pressure test to make sure you don't have problems from actually freezing.

 

[notagp_afj55]

Does anyone have a pic showing the routing of those heater tubes that runn along
the firewall by the back of the motor? Or a diagram of some sort?

 

[notagp_afj55]

Still cant find were the leak is. All heater lines and tubes seem good and
unbroken. Is there anyway to tell whats wrong back there without pulling the
tranny?

 

[sl33py]

Does this help?

not sure if this will link properly...

http://www.sor.com/shared/image/188e1.gif

 

[notagp_afj55]

Thanks and it did link right. But after looking at these lines i now know for sure
the lines are not busted, so that means that the block might be cracked. How often
has anyone seen a 2F block cracking from blowing a headgasket?

-Jim